Greenheck Fan Switch EP Switch User Manual

Ep switch  
24 Vdc / 24 Vac / 120 Vac  
Application & Design  
An electro-pneumatic (EP) switch, also known as a three way solenoid valve, is used to electrically open and close a pneumatic  
actuated damper. It is wired in series with a normally closed thermostat when used with a fire smoke damper (FSD) to initiate  
closure at elevated temperatures. The EP switch can also be used on a smoke damper (SMD) to initiate closure when required in  
a smoke control system.  
input signal: 24 Vdc  
Assembly  
(specify) 24 Vac  
1
120 Vac  
6
3
2
4
7
5
8
item Qty. part # Description  
Kit #  
1
2
3
-
1
1
1
1
1
1
1
2
1
1
-
-
Valve 18" NPT  
Retaining Clip  
9
452460 S/V 120 Vac  
380913 S/V 24 Vac  
812441  
812442  
812443  
-
381042 S/V 24 Vdc  
4
5
6
7
8
651371 Mounting Bracket  
380850 2 x 4 x 1.875 Ext. Box  
415555 #10 x 0.50 TEK Screw  
380257 2 x 4 Blank Cover  
415539 #10-32 HH Grounding  
Screw (green)  
9
1
454850 Label  
Kit #s include appropriate voltage solenoid valve shown  
under Item 3 and all other Item #s above.  
typical setup  
Port 3  
Exhaust  
Solenoid Valve With RRL  
TOR/RRL  
Wiring  
Har dware  
ASCO Solenoid  
Valve Assembly  
Solenoid Valve  
Red  
RRL  
Orange  
Red  
Black  
Port 1  
Port 2  
Supply  
To Actuator  
Solenoid Valve With TOR  
Solenoid Valve  
TOR  
Brown  
Orange  
Black  
Blue  
Red  
Red  
Red  
Purple  
Yellow  
Red  
Red  
Copyright © 2007 Greenheck Fan Corporation  
EP Switch Rev. 3 May 2007  
 

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